Strictly speaking it's not supported to run site-to-site VPN subnet translation with a non-Meraki peer.   You may find that it works (Last time I checked, it did - but that was a couple of years ago), but it may not always do so - particularly if you're upgrading firmware - and Meraki Support will not really be able to assist, in the event of any difficulties. https://documentation.meraki.com/MX/Site-to-site_VPN/Using_Site-to-site_VPN_Translation ... View more